#!/usr/bin/env python
# -*- coding: utf-8 -*-
#
# Copyright (c) 2015 Baidu, Inc. All Rights Reserved.

# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at

#     http://www.apache.org/licenses/LICENSE-2.0

# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.

#

"""
Some common functions shared by Bigflow transforms

Author: Wang, Cong(bigflow-opensource@baidu.com)
"""


def default_key_extractor(x):
    return x[0]


def default_value_extractor(x):
    return x[1] if len(x) == 2 else x[1:]

